To extend a volume, unallocated space must exist, and the unallocated space must be adjacent to the target partition. In addition, the partition style of the target volume must be in NTFS format. The ...

The Windows operating system divides your computer's hard drive into specific spaces known as "partitions." Data from one partition does not cross over into another partition unless the user copies it ...

You may view your hard drive in Disk Management and realize there are unallocated spaces. The space will be on the hard drive, but Windows cannot use it. It is like having a spare room in your house ...